Windvane

Details Windvane Windvane

1981-01-12

1985-06-11

Frankfort, Charles

Measuring and testing

Navigation

Leeway incidence or side-slip

116 28R, 116265, G01P 1302

Patent

active

045220697

ABSTRACT:
A plexiglass or similar plastic windvane that has beveled peripheral edges or is otherwise provided with surface markings from which light rays impinging thereon exit from the plexiglass causing illumination of the edges or markings, whereby the windvane is effectively used at night or under conditions of diminished visibility to designate wind direction.

REFERENCES:
patent: 2328485 (1943-08-01), Ott
patent: 2782544 (1957-02-01), Tobin
patent: 3354715 (1967-11-01), Causey
patent: 3371529 (1968-03-01), Tillman
patent: 4068121 (1978-01-01), Bringhurst
patent: 4300470 (1981-11-01), Furukawa

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